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Math Help - WHOS got the trig brain for this one?????

  1. #1
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    WHOS got the trig brain for this one?????

    for each of the sinusoidal equations

    a) state the mapping rule
    B) use the mapping tecnique to build a table of values for each function. for the basic function, y = sin x use values of x = 0 degrees, 90, 180, 270, 360 degrees. then use your mapping to build the table for the functions.
    c) sketch a graph


    i) y = 3 sin2x

    ii) y - 1 = cos(x+45degrees)

    iii) y = 3/4sin 1/2x - 1

    iv) - (y-4) = cos(x-30degrees) no graph required

    v) y = 2 cos4 (x+60degrees) - 3 no graph


    thanks if you could help with any of them or all them its great
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  2. #2
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    Re: WHOS got the trig brain for this one?????

    Quote Originally Posted by peiranger View Post
    for each of the sinusoidal equations

    a) state the mapping rule
    B) use the mapping tecnique to build a table of values for each function. for the basic function, y = sin x use values of x = 0 degrees, 90, 180, 270, 360 degrees. then use your mapping to build the table for the functions.
    c) sketch a graph


    i) y = 3 sin2x

    ii) y - 1 = cos(x+45degrees)

    iii) y = 3/4sin 1/2x - 1

    iv) - (y-4) = cos(x-30degrees) no graph required

    v) y = 2 cos4 (x+60degrees) - 3 no graph


    thanks if you could help with any of them or all them its great
    I suggest you read the forum rules - among other rules being broken, you are supposed to show some effort.
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  3. #3
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    Re: WHOS got the trig brain for this one?????

    i have them answered i just wanted to make sure they are correct
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  4. #4
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    Re: WHOS got the trig brain for this one?????

    Well then post what you have done and we can check them.
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